1 # -*- coding: utf-8 -*-
7 from salome.geom import geomBuilder
13 def demidisk(study, r1, a1, roty=0, solid_thickness=0):
14 if solid_thickness < 1e-7:
19 #geompy = geomBuilder.New(study)
21 O = geompy.MakeVertex(0, 0, 0)
22 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
23 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
24 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
28 v0 = geompy.MakeVertex(0, 0, 0)
29 v[0] = geompy.MakeVertex(0, r1/2.0, 0)
30 v[1] = geompy.MakeVertex(0, r1, 0)
31 l[1] = geompy.MakeLineTwoPnt(v[0], v[1])
32 l[2] = geompy.MakeRotation(l[1], OX, a1*math.pi/180.0)
33 v[4] = geompy.MakeRotation(v[0], OX, a1*math.pi/180.0)
34 v[6] = geompy.MakeRotation(v[1], OX, a1*math.pi/180.0)
36 v[2] = geompy.MakeVertex(0, -r1/2.0, 0)
37 v[3] = geompy.MakeVertex(0, -r1, 0)
38 l[3] = geompy.MakeLineTwoPnt(v[2], v[3])
39 l[4] = geompy.MakeRotation(l[3], OX, -a1*math.pi/180.0)
40 v[5] = geompy.MakeRotation(v[2], OX, -a1*math.pi/180.0)
41 v[7] = geompy.MakeRotation(v[3], OX, -a1*math.pi/180.0)
43 l[5] = geompy.MakeLineTwoPnt(v[4], v[5])
44 l[6] = geompy.MakeLineTwoPnt(v[0], v[4])
45 l[7] = geompy.MakeLineTwoPnt(v[2], v[5])
47 v7 = geompy.MakeVertex(0, 0, r1)
48 arc1 = geompy.MakeArc(v[1], v7, v[3])
49 l[0] = geompy.MakeLineTwoPnt(v[1], v[3])
50 face1 = geompy.MakeFaceWires([arc1, l[0]], 1)
51 part1 = geompy.MakePartition([face1], [l[2], l[4], l[5], l[6], l[7]], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
54 # Add some faces corresponding to the solid layer outside
58 v0 = geompy.MakeVertex(0, r1 + solid_thickness, 0)
59 v1 = geompy.MakeRotation(v0, OX, a1*math.pi/180.0)
60 v2 = geompy.MakeRotation(v0, OX, math.pi - (a1*math.pi/180.0))
61 v3 = geompy.MakeRotation(v0, OX, math.pi)
62 v.extend([v0,v1,v3,v2]) # The order is important for use in pointsProjetes
64 l0 = geompy.MakeLineTwoPnt(v[1], v0)
65 l2 = geompy.MakeRotation(l0, OX, a1*math.pi/180.0)
66 l3 = geompy.MakeRotation(l0, OX, math.pi - (a1*math.pi/180.0))
68 face2 = geompy.MakeRevolution(l0, OX, a1*math.pi/180.0)
69 face3 = geompy.MakeRevolution(l2, OX, math.pi - 2*a1*math.pi/180.0)
70 face4 = geompy.MakeRevolution(l3, OX, a1*math.pi/180.0)
71 # --- Compound of the "fluid part" of the divided disk and the additional faces
72 compound1 = geompy.MakeCompound([part1, face2, face3, face4])
74 part1 = geompy.MakeGlueEdges(compound1,1e-7)
77 vrot = [ geompy.MakeRotation(vert, OY, roty*math.pi/180.0) for vert in v ]
78 lrot = [ geompy.MakeRotation(lin, OY, roty*math.pi/180.0) for lin in l ]
79 arc = geompy.MakeRotation(arc1, OY, roty*math.pi/180.0)
80 part = geompy.MakeRotation(part1, OY, roty*math.pi/180.0)
81 return vrot, lrot, arc, part
83 return v, l, arc1, part1
85 def pointsProjetes(study, vref, face):
86 #geompy = geomBuilder.New(study)
87 vface = geompy.ExtractShapes(face, geompy.ShapeType["VERTEX"], True)
88 vord = range(len(vref))
89 plan = geompy.MakePlaneThreePnt(vref[0], vref[1], vref[-1], 10000)
90 vproj = [ geompy.MakeProjection(vert, plan) for vert in vface ]
91 for i,v in enumerate(vproj):
92 dist = [ (geompy.MinDistance(v, vr), j) for j,vr in enumerate(vref) ]
94 if dist[0][0] < 1.e-3:
95 vord[dist[0][1]] = vface[i]
98 def arcsProjetes(study, vf, face):
99 #geompy = geomBuilder.New(study)
100 lface = geompy.ExtractShapes(face, geompy.ShapeType["EDGE"], True)
102 ends = [vf[1], vf[6], vf[7], vf[3]]
105 pts = geompy.ExtractShapes(lf, geompy.ShapeType["VERTEX"], True)
106 if (((geompy.MinDistance(pts[0], ends[i]) < 0.001) and (geompy.MinDistance(pts[1], ends[i+1]) < 0.001)) or
107 ((geompy.MinDistance(pts[1], ends[i]) < 0.001) and (geompy.MinDistance(pts[0], ends[i+1]) < 0.001))):
114 def build_shape(study, r1, r2, h1, h2, solid_thickness=0, progressBar=None ):
115 """ Builds the final shape """
117 if solid_thickness < 1e-7:
123 geompy = geomBuilder.New(study)
125 O = geompy.MakeVertex(0, 0, 0)
126 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
127 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
128 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
132 ratio = float(r2)/float(r1)
133 if ratio > (1.0 -seuilmax):
134 a1 = 45.0*(1.0 -ratio)/seuilmax
136 # --- Creation of the jonction faces
137 [faci, sect45, arc1, l1, lord90, lord45, edges, arcextru] = jonction(study, r1, r2,\
139 if progressBar is not None:
140 progressBar.addSteps(1)
143 # The same code is executed again with different external radiuses in order
144 # to get the needed faces and edges to build the solid layer of the pipe
145 [faci_ext, sect45_ext, arc1_ext, l1_ext, \
146 lord90_ext, lord45_ext, edges_ext, arcextru_ext] = jonction(study, r1 + solid_thickness, r2 + solid_thickness,\
148 faces_jonction_ext = []
149 for i,l in enumerate(lord90):
150 faces_jonction_ext.append(geompy.MakeQuad2Edges(lord90[i],lord90_ext[i]))
151 for i in [1, 3, 6, 7]:
152 faces_jonction_ext.append(geompy.MakeQuad2Edges(edges[i],edges_ext[i]))
153 for i,l in enumerate(lord45):
154 faces_jonction_ext.append(geompy.MakeQuad2Edges(lord45[i],lord45_ext[i]))
156 if progressBar is not None:
157 progressBar.addSteps(1)
159 # --- extrusion droite des faces de jonction, pour reconstituer les demi cylindres
161 sect45 = geompy.MakeCompound([sect45]+faces_jonction_ext[-3:])
162 sect45 = geompy.MakeGlueEdges(sect45, 1e-7)
164 if progressBar is not None:
165 progressBar.addSteps(1)
167 extru1 = geompy.MakePrismVecH(sect45, OX, h1+10)
169 faces_coupe = faci[5:]
171 faces_coupe = faci[5:]+faces_jonction_ext[:3]
172 base2 = geompy.MakePartition(faces_coupe, [], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
173 extru2 = geompy.MakePrismVecH(base2, OZ, h2)
175 if progressBar is not None:
176 progressBar.addSteps(1)
178 # --- partition et coupe
181 demiDisque = geompy.MakeFaceWires([arc1_ext, l1_ext[0]], 1)
183 demiDisque = geompy.MakeFaceWires([arc1, l1[0]], 1)
184 demiCylindre = geompy.MakePrismVecH(demiDisque, OX, h1)
186 if progressBar is not None:
187 progressBar.addSteps(1)
189 box = geompy.MakeBox(0, -2*(r1+h1), -2*(r1+h1), 2*(r1+h1), 2*(r1+h1), 2*(r1+h1))
190 rot = geompy.MakeRotation(box, OY, 45*math.pi/180.0)
192 # NOTE: The following Cut takes almost half of the total execution time
193 garder = geompy.MakeCutList(demiCylindre, [extru2, rot], True)
195 if progressBar is not None:
196 progressBar.addSteps(10)
198 faces_coupe = faci[:5]
200 faces_coupe.extend(faces_jonction_ext[-7:])
201 raccord = geompy.MakePartition([garder], faces_coupe + [arcextru], [], [], geompy.ShapeType["SOLID"], 0, [], 0, True)
202 assemblage = geompy.MakeCompound([raccord, extru1, extru2])
203 assemblage = geompy.MakeGlueFaces(assemblage, 1e-7)
205 if progressBar is not None:
206 progressBar.addSteps(2)
208 box = geompy.MakeBox(-1, -(r1+r2+2*solid_thickness), -1, h1, r1+r2+2*solid_thickness, h2)
210 # NOTE: This operation takes about 1/4 of the total execution time
211 final = geompy.MakeCommonList([box, assemblage], True)
213 if progressBar is not None:
214 progressBar.addSteps(5)
216 # --- Partie inférieure
218 v3, l3, arc3, part3 = demidisk(study, r1, a1, 180.0, solid_thickness)
219 extru3 = geompy.MakePrismVecH(part3, OX, h1)
223 compound = geompy.MakeCompound([final, extru3])
224 plane = geompy.MakePlane(O,OX,2000)
225 compound_mirrored = geompy.MakeMirrorByPlane(compound, plane)
226 final = geompy.MakeCompound([compound, compound_mirrored])
228 if progressBar is not None:
229 progressBar.addSteps(1)
234 def jonction(study, r1, r2, h1, h2, a1):
235 """ Builds the jonction faces and
236 returns what is needed to build the whole pipe
238 #geompy = geomBuilder.New(study)
240 O = geompy.MakeVertex(0, 0, 0)
241 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
242 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
243 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
245 # --- sections droites des deux demi cylindres avec le partionnement
246 v1, l1, arc1, part1 = demidisk(study, r1, a1, 0.)
247 v2, l2, arc2, part2 = demidisk(study, r2, a1, 90.0)
249 # --- extrusion des sections --> demi cylindres de travail, pour en extraire les sections utilisées au niveau du Té
250 # et enveloppe cylindrique du cylindre principal
252 demicyl1 = geompy.MakePrismVecH(part1, OX, h1)
253 demicyl2 = geompy.MakePrismVecH(part2, OZ, h2)
254 arcextru = geompy.MakePrismVecH(arc1, OX, h1)
256 # --- plan de coupe à 45° sur le cylindre principal,
257 # section à 45° du cylndre principal,
258 # section du cylindre secondaire par l'enveloppe cylindrique du cylindre principal
260 plan1 = geompy.MakePlane(O, OX, 4*r1)
261 planr = geompy.MakeRotation(plan1, OY, 45*math.pi/180.0)
263 sect45 = geompy.MakeCommonList([demicyl1, planr], True)
264 sect90 = geompy.MakeCommonList([demicyl2, arcextru], True)
265 #geompy.addToStudy(sect90, "sect90")
267 # --- liste ordonnée des points projetés sur les deux sections
269 vord45 = pointsProjetes(study, v1, sect45)
270 vord90 = pointsProjetes(study, v2, sect90)
272 # --- identification des projections des trois arcs de cercle, sur les deux sections.
274 lord45 = arcsProjetes(study, vord45, sect45)
275 lord90 = arcsProjetes(study, vord90, sect90)
277 # --- abaissement des quatre points centraux de la section du cylindre secondaire
280 for i in (0, 2, 4, 5):
281 vord90[i] = geompy.TranslateDXDYDZ(vord90[i], 0, 0, dz, True)
282 #geompy.addToStudyInFather(sect90, vord90[i], 'vm%d'%i)
284 # --- création des deux arêtes curvilignes sur l'enveloppe cylindrique du cylindre principal, à la jonction
286 curv = [None for i in range(4)] # liaisons entre les points 1, 3, 6 et 7 des 2 sections
288 curv[0] = geompy.MakeArcCenter(O, vord90[1] , vord45[1], False)
289 curv[1] = geompy.MakeArcCenter(O, vord90[3] , vord45[3], False)
291 lipts = ((6, 6, 4), (7, 7, 5))
292 for i, ipts in enumerate(lipts):
297 plan = geompy.MakePlaneThreePnt(p0, p1, p2, 10000)
298 #geompy.addToStudy(plan, "plan%d"%i)
299 section = geompy.MakeSection(plan, arcextru, True)
300 secpart = geompy.MakePartition([section], [sect45, sect90], [], [], geompy.ShapeType["EDGE"], 0, [], 0, True)
301 #geompy.addToStudy(secpart, "secpart%d"%i)
302 lsec = geompy.ExtractShapes(secpart, geompy.ShapeType["EDGE"], True)
305 pts = geompy.ExtractShapes(l, geompy.ShapeType["VERTEX"], True)
306 if (((geompy.MinDistance(pts[0], p0) < 0.001) and (geompy.MinDistance(pts[1], p1) < 0.001)) or
307 ((geompy.MinDistance(pts[1], p0) < 0.001) and (geompy.MinDistance(pts[0], p1) < 0.001))):
309 #print "curv_%d OK"%i
312 # --- creation des arêtes droites manquantes, des faces et volumes pour les quatre volumes de la jonction
314 edges = [None for i in range(8)]
315 edges[0] = geompy.MakeLineTwoPnt(vord45[0], vord90[0])
317 edges[2] = geompy.MakeLineTwoPnt(vord45[2], vord90[2])
319 edges[4] = geompy.MakeLineTwoPnt(vord45[4], vord90[4])
320 edges[5] = geompy.MakeLineTwoPnt(vord45[5], vord90[5])
324 ed45 = [None for i in range(8)]
325 ed45[0] = geompy.MakeLineTwoPnt(vord45[0], vord45[2])
326 ed45[1] = geompy.MakeLineTwoPnt(vord45[0], vord45[1])
327 ed45[2] = geompy.MakeLineTwoPnt(vord45[4], vord45[6])
328 ed45[3] = geompy.MakeLineTwoPnt(vord45[2], vord45[3])
329 ed45[4] = geompy.MakeLineTwoPnt(vord45[5], vord45[7])
330 ed45[5] = geompy.MakeLineTwoPnt(vord45[4], vord45[5])
331 ed45[6] = geompy.MakeLineTwoPnt(vord45[0], vord45[4])
332 ed45[7] = geompy.MakeLineTwoPnt(vord45[2], vord45[5])
334 ed90 = [None for i in range(8)]
335 ed90[0] = geompy.MakeLineTwoPnt(vord90[0], vord90[2])
336 ed90[1] = geompy.MakeLineTwoPnt(vord90[0], vord90[1])
337 ed90[2] = geompy.MakeLineTwoPnt(vord90[4], vord90[6])
338 ed90[3] = geompy.MakeLineTwoPnt(vord90[2], vord90[3])
339 ed90[4] = geompy.MakeLineTwoPnt(vord90[5], vord90[7])
340 ed90[5] = geompy.MakeLineTwoPnt(vord90[4], vord90[5])
341 ed90[6] = geompy.MakeLineTwoPnt(vord90[0], vord90[4])
342 ed90[7] = geompy.MakeLineTwoPnt(vord90[2], vord90[5])
345 faci.append(geompy.MakeFaceWires([ed45[6], edges[0], ed90[6], edges[4]], 0))
346 faci.append(geompy.MakeFaceWires([ed45[7], edges[2], ed90[7], edges[5]], 0))
347 faci.append(geompy.MakeFaceWires([ed45[2], edges[4], ed90[2], edges[6]], 0))
348 faci.append(geompy.MakeFaceWires([ed45[5], edges[4], ed90[5], edges[5]], 0))
349 faci.append(geompy.MakeFaceWires([ed45[4], edges[5], ed90[4], edges[7]], 0))
350 faci.append(geompy.MakeFaceWires([ed90[0], ed90[6], ed90[5], ed90[7]], 0))
351 faci.append(geompy.MakeFaceWires([ed90[1], ed90[6], ed90[2], lord90[0]], 0))
352 faci.append(geompy.MakeFaceWires([ed90[2], ed90[5], ed90[4], lord90[1]], 0))
353 faci.append(geompy.MakeFaceWires([ed90[3], ed90[7], ed90[4], lord90[2]], 0))
355 return faci, sect45, arc1, l1, lord90, lord45, edges, arcextru
357 def test_t_shape_builder():
358 """For testing purpose"""
360 theStudy = salome.myStudy
361 geompy = geomBuilder.New(theStudy)
362 for r1 in [1., 100.]:
363 for r2 in [0.9*r1, 0.5*r1, 0.1*r1, 0.05*r1]:
364 for thickness in [r1/100., r1/10., r1/2.]:
365 print r1, r2, thickness
369 res = build_shape(theStudy, r1, r2, h1, h2, thickness)
370 geompy.addToStudy(res, "res_%f_%f_%f"%(r1,r2, thickness))
372 print "problem with res_%f_%f_%f"%(r1,r2, thickness)
374 if __name__=="__main__":
375 """For testing purpose"""
376 test_t_shape_builder()